As the Land of the Rising Sun faces record-smashing temperatures, sales of odor-absorbing underpants originally designed for astronauts are hitting their own stride, according to Bloomberg Businessweek. Goldwin, the company that markets Speedo swimsuits in Japan, claims that its nanotechnology-enhanced MXP unmentionables can neutralize the smell from four liters of sweat. The timing of the underwear’s commercial launch could not be more fortuitous: Japan’s Meteorological Agency is predicting the hottest summer in 100 years after a heat wave in Tokyo topped 95 degrees Fahrenheit (36 degrees Celsius).